I’m a 76 year old heterosexual man. I’m now having the best sex of my life, but I don’t know why. For several years now, both with and without my partner, my orgasms have lasted longer and longer, now 15 seconds or more, which has given me more pleasure. Not that I’m producing more ejaculate, in fact significantly less, I’m pretty sure. These longer, stronger orgasms are startling—and pleasing of course, but also puzzling. Have you ever heard of this?